/Engine/Source/Runtime/Core/Public/ProfilingDebugging/TraceAuxiliary.h
struct FOptions
bool
bExcludeTail
When set, trace data buffered before starting tracing will not be output to the trace file
bool
bNoWorkerThread
When set, trace will not start a worker thread, instead it is updated from end frame delegate.
bool
bTruncateFile
When set, the target file will be truncated if it already exists.